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4). Calculati :
a). 2^4• 2^5 =
b). 3^8• 3^9 =
c). 5^10•5^21
d). 2^6• 4^2 =
e). 3^9•9^7
f). 8^16•16^5 = •=înmulțire

Răspuns :

1DianaMaria3

[tex] \red{a {}^{x} \times a {}^{y} = a {}^{x + y} }[/tex]

[tex]2 {}^{4} \times {2}^{5} = 2 {}^{4 + 5} = {2}^{9} [/tex]

[tex] {3}^{8} \times {3}^{9} = {3}^{8 + 9} = {3}^{17} [/tex]

[tex] {5}^{10} \times {5}^{21} = {5}^{10 + 21} = {5}^{23} [/tex]

[tex] 4 = {2}^{2} \\ {4}^{2} = { 2} ^{4} \\ 2 {}^{6} \times {2}^{4} = 2 {}^{6 + 4} = {2}^{10} [/tex]

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